Yes he did.
Check this link:

http://www.janoelofsesafaris.com/professional_hunters.htm

B.Martins

MagnumHunter,

Any details available on Wayne's safari's? What he took and with what gun, caliber, etc.?

Gentlemen,

Quite a lot of celebrities of today hunt, they just like to keep it quiet because of the bad publicity it might bring them.

Of course, this was not the case in the past.

John Wayne was very good friends with Jan Oelofse, and hunted with Jan many times. They met in Tanzania during the filming of Hatari, when Jan was the Dukes stunt double for the animal capture scenes.